hub: render-test for the dashboard critical badge (Scenario D — UI verify; operator login gates Chrome)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6

hub/internal/web/render_test.go

@@ -70,3 +70,46 @@ func TestTemplates_FloorRender(t *testing.T) {
 		}
 	}
 }
+
+// Scenario D of the v0.31.0 critical-severity fix: a customer with critical events must render a
+// distinct severity-critical count badge on the dashboard, ordered BEFORE the error badge.
+// (Pre-fix consumer gap: criticals were accepted but invisible in the 24h summary counts.)
+func TestTemplates_DashboardCriticalBadge(t *testing.T) {
+	st, err := store.New(filepath.Join(t.TempDir(), "t.db"), log.New(io.Discard, "", 0))
+	if err != nil {
+		t.Fatalf("store.New: %v", err)
+	}
+	t.Cleanup(func() { st.Close() })
+	s := New(st, "", "", "test", time.Hour, log.New(io.Discard, "", 0))
+
+	// Mirrors the anonymous dashboardCustomer struct in handleDashboard.
+	type dashboardCustomer struct {
+		store.CustomerSummary
+		OverallStatus  string
+		BackupAge      string
+		EventCriticals int
+		EventErrors    int
+		EventWarnings  int
+	}
+	data := []dashboardCustomer{{
+		CustomerSummary: store.CustomerSummary{CustomerID: "c1", CustomerName: "Acme", ReceivedAt: time.Now()},
+		OverallStatus:   "ok", BackupAge: "–",
+		EventCriticals: 2, EventErrors: 1, EventWarnings: 0,
+	}}
+	var buf bytes.Buffer
+	if err := s.templates.ExecuteTemplate(&buf, "dashboard.html", data); err != nil {
+		t.Fatalf("render dashboard.html: %v", err)
+	}
+	body := buf.String()
+	critIdx := strings.Index(body, `severity-badge severity-critical">2<`)
+	errIdx := strings.Index(body, `severity-badge severity-error">1<`)
+	if critIdx < 0 {
+		t.Fatalf("dashboard.html missing the severity-critical count badge")
+	}
+	if errIdx < 0 {
+		t.Fatalf("dashboard.html missing the severity-error count badge")
+	}
+	if critIdx > errIdx {
+		t.Errorf("critical badge renders AFTER the error badge (crit@%d, err@%d) — must be first", critIdx, errIdx)
+	}
+}